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They date the igneous intrusions and extrusions near the sedimentary rock layers.
What else can I help you with?
How do scientists use sedimentary rock to determine a fossils relative age?
Scientists can use sedimentary rock to determine a fossil's relative age by examining the layers in which the fossil is found. The principle of superposition states that in an undisturbed sequence of sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. By identifying the layer in which the fossil is located, scientists can approximate its relative age compared to other fossils and rock layers.
What is special about a sedimentary rock?
Nothing. Scientists have reached consensus that there is absolutely nothing important or special about sedimentary rock. Sedimentary rocks are barely even rocks. Some scientists are pushing to have sedimentary rocks declassified as rocks, and reclassified as extraneous matter.
Where should scientists go to search for sedimentary rock?
probably at the beach
Which dating method enables scientists to measure or estimate the absolute age of sedimentary rock?
Radiometric dating of igneous rocks that relate to the sedimentary rock
Why do scientists look to sedimentary rocks when studying the history of the Earth?
The vast majority of fossils are found in sedimentary rock.
What do Geologists use radiometric dating to date sedimentary rock?
Geologists use radiometric dating of volcanic ash layers within sedimentary rock to determine the age of the sedimentary rock. By dating the igneous rock layers above and below the sedimentary rock, geologists can establish a bracket of time within which the sedimentary rock was deposited.
What makes sedimentary rocks especially useful to scientists and historians?
Sedimentary rock are made of materials that could show what lived where. Also they are the only rock to hold fossils.
Why is it difficult to dtermine the absolute age of a sedimentary rock?
In most cases, all we have to date are the clasts in the sedimentary rock. Dating the clasts, however, would yield the age of the source rock from which they were derived rather than the current sedimentary rock.
How are sedimentary rock layers used be scientists to learn about the past?
plant and animal fossils are most often found in layers of sedimentary rocks
How do you see a sedimentary rocks age by looking at the fossils?
Find out what era the Fossil was from and then you can put a relative date on the sedimentary rock, assuming that the fossil was preserved in the sedimentary rock when it had died. It would not be the actual age because you need to date the radioactive isotopes for that.
Is organic rock a type of sedimentary rock?
ORGANIC SEDIMENTARY ROCK`s : Is a type of sedimentary rock because sedimentary rock has three types of sedimentary rock called clastic , chemical , and organic sedimentary rock so yes ORGANIC SEDIMENTARY ROCK is a type of sedimentary rock..........................................
What evidence would a scientists use to determine the absolute age of a fossil found in sedimentary rock?
The Igneous intrusions and extrusions near sedimentary layers.
